Weighing scales – With testing
Patent
1991-02-04
1992-06-23
Miller, Jr., George H.
Weighing scales
With testing
177200, G01G 1952
Patent
active
051234947
ABSTRACT:
The present invention describes a method and apparatus for weighing customers entering and leaving a store, or a user entering and leaving a particular institution or a worker entering and leaving the workplace and ascertaining automatically that the equivalence of the said two weight values do not indicate that any goods have been fraudulently removed by the person in question and where said equivalence does not occur, initiates an alarm protocol. In the preferred embodiment of the present invention the customer is weighed upon entering the retail store and is given a bar coded printed token indicative of his/her weight. At the checkout stand, with the customer's purchased products still resting typically in the shopping cart or on the checkout stand, the customer is weighed again and scans in the bar coded printed token previously obtained. The customer's weight should remain significantly unchanged if no products have been fraudulently obtained. If such equivalence does not exist then an alarm protocol is automatically initiated.
REFERENCES:
patent: 3750158 (1973-07-01), Anastassakis
patent: 4676343 (1987-06-01), Humble et al.
patent: 4779706 (1988-10-01), Mergenthaler
patent: 4787467 (1988-11-01), Johnson
patent: 4792018 (1988-12-01), Humble et al.
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